Passed pawn vs. mating attack

Black threatens to checkmate on h2. What would you play with White?
A) 40.Ng4
B) 40.Qxf4
C) another queen move
Solution
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1.d4 d5 2.Nf3 Nf6 3.c4 dxc4 4.e3 g6 5.Bxc4 Bg7 6.0-0 0-0 7.Nc3 Nfd7 8.Bb3 Nb6 9.d5 c6 10.e4 Bg4 11.h3 Bxf3 12.Qxf3 N8d7 13.Rd1 cxd5 14.exd5 Nc8 15.Bg5 h6 16.Bf4 Nd6 17.Rd2 Nc5 18.Re1 Nxb3 19.axb3 Re8 20.Rde2 Nf5 21.Be5 Qb6 22.g4 Nd4 23.Bxd4 Bxd4 24.Rxe7 Rxe7 25.Rxe7 Bf6 26.Rd7 Rf8 27.d6 Be5 28.Nd5 Qd4 29.Kg2 a5 30.h4 Kg7 31.h5 gxh5 32.gxh5 Kh8 33.Ne7 Bf6 34.Nf5 Qd2 35.Rxb7 Rg8+ 36.Kh3 Qe1 37.Ne3 Be5 38.Re7 Bf4 39.d7 Qg1 40.Ng4 40.Qxf4 Qh1+ 41.Qh2 Qf3+ 42.Qg3 42.Kh4? Qf6+ 43.Kh3 Qxe7 42...Rxg3+ 42...Qh1+ 43.Qh2 Qf3+ 43.fxg3 Qxh5+ 44.Kg2 Qe2+ 40.Qg2‼ Rxg2 40...Qxg2+ 41.Nxg2 Bc7 42.Re8 41.d8Q+ Rg8 41...Kh7 42.Qd3+ Kg7 43.Qd4+ Kh7 44.Qe4+ 42.Qd4+! Rg7 42...Qg7 43.Qxf4+- 42...Kh7 43.Rxf7+ Rg7 44.Rxg7+ Qxg7 45.Qxf4 43.Re8+ Kh7 44.Qe4+ 40...Qf1+ 41.Qg2 41.Kh4?? Bg5+ 42.Kg3 Bxe7 41...Qd3+ 42.f3 Qf5? 42...Qd5! 43.Qf2 Bg5! 43.Qf2! Qxh5+ 43...Bg5 44.Qd4+! Kh7 44...f6 45.Kg3! 45.Qe4! Qxe4 46.Rxf7+!+- 44.Kg2 44.Qh4 Qxh4+ 45.Kxh4 Bg5+ 44...Qd5 44...Qh2+ 45.Kf1 Qh3+ 46.Ke2 45.Re8 Bg5 45...Qxd7 46.Rxg8+ Kxg8 47.Nf6+ 46.Qg3! Qd2+ 46...Qxd7 47.Rxg8+ Kxg8 48.Nf6+ 47.Nf2 47.Kh1! Qd1+ 48.Kh2! Qd2+ 49.Qg2 Bf4+ 50.Kg1! 50.Kh1? Qd1+ 51.Qg1 Qxf3+ 50...Qd1+ 51.Qf1 Qd4+ 52.Kh1+- 47.Kh3? Qxd7 48.Rxg8+ Kxg8 47...Qxd7 48.Rxg8+ Kxg8 49.f4 Qd5+ 50.Kh2 Kf8 51.fxg5 hxg5 52.b4 axb4 53.Qb8+ Ke7 54.Qxb4+ Qd6+ 55.Qxd6+ Kxd6 56.Kg2 Kc5 57.Kf3 Kc4 58.Kg4 f6 59.Kf5 Kb4 60.Ke4 Kb3 61.Nd3 g4 62.Ke3 f5 63.Kf4 Kc4 64.Nc1 Kd4 65.Nb3+ Kc4 66.Nc1 Kd4 67.Kxf5 g3 68.Ne2+ Kc4 69.Nxg3 Kb3 ½–½
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Babula,V | 2545 | Heberla,B | 2567 | ½–½ |
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Oliver Reeh in ChessBase Magazine
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ChessBase Magazine #164 (Feb./March)

Introduction by Karsten Müller
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